CN206683028U - Individual well hot dry rock heating system - Google Patents
Individual well hot dry rock heating system Download PDFInfo
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- CN206683028U CN206683028U CN201720301290.2U CN201720301290U CN206683028U CN 206683028 U CN206683028 U CN 206683028U CN 201720301290 U CN201720301290 U CN 201720301290U CN 206683028 U CN206683028 U CN 206683028U
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- heat exchanger
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- dry rock
- heating system
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Abstract
The utility model discloses a kind of individual well hot dry rock heating system, including the sleeve pipe being arranged in hot dry rock layer depth well, the bottom end closure of described sleeve pipe, described sleeve pipe inner bottom part is provided with bore hole heat exchanger, described sleeve pipe inner bottom part is inoculated with water, and the bore hole heat exchanger is submerged in water；The top of the bore hole heat exchanger is provided with medium inlet pipe and medium outlet pipe, and the medium outlet pipe is connected to the ground a side-entrance of heat exchanger, and a side outlet of the ground heat exchanger is connected to the medium inlet pipe after high-pressure pump；The secondary side connection user side heating circulation pipeline of the ground heat exchanger.Individual well hot dry rock heating system of the present utility model, heat energy source of the hot dry rock heat energy as heating system can be effectively utilized.
Description
Technical field
Hot dry rock heat energy utilization field is the utility model is related to, specifically, is related to a kind of individual well hot dry rock heating
System.
Background technology
Underground heat heat energy is a kind of inexhaustible regenerative resource, with the development of science and technology, by the use of underground heat heat energy as taking
The heat energy source of warm generating etc., turns into a kind of development trend.Such as the heat pump using underground heat heat energy to grow up in recent years
The utilization of system.Bury in the 2000 meters of xeothermic rock stratum to ten thousand metres in underground, be that fluid or only a small amount of fluid is not present in inside
High heat rock mass, for its temperature at tens degrees Celsius to hundreds of degrees Celsius, containing has huge heat energy, be a kind of cleaning can be again
The raw energy.But limited by technology, the heat of hot dry rock is not easy to extract, and therefore, extraction hot dry rock heat energy is used for heating
Never it is used widely.
Utility model content
Technical problem to be solved in the utility model is：Offer one kind can effectively utilize hot dry rock heat energy and be supplied
Warm individual well hot dry rock heating system.
In order to solve the above technical problems, the technical solution of the utility model is：
Individual well hot dry rock heating system, including the sleeve pipe being arranged in hot dry rock layer depth well, the bottom end closure of described sleeve pipe,
Described sleeve pipe inner bottom part is provided with bore hole heat exchanger, and described sleeve pipe inner bottom part is inoculated with water, and the bore hole heat exchanger is submerged in water；
The top of the bore hole heat exchanger is provided with medium inlet pipe and medium outlet pipe, and the medium outlet pipe is connected to the ground heat exchange
Side-entrance of device, a side outlet of the ground heat exchanger are connected to the medium inlet pipe after high-pressure pump；
The secondary side connection user side heating circulation pipeline of the ground heat exchanger.
Preferably, the bore hole heat exchanger includes columnar housing, and the both ends of the housing set end plate respectively, definition
The end plate at both ends is respectively first end plate and the second end plate, and the medium inlet pipe and the medium outlet pipe are located at the first end plate
On；
In the housing from the first end plate to be disposed between second end plate liquid separation chamber, heat exchanging chamber, with
And liquid collecting cavity, the medium inlet pipe are communicated to the liquid separation chamber, heat exchanger tube is provided with the heat exchanging chamber, the one of the heat exchanger tube
End is communicated to the liquid separation chamber by liquid separation tube sheet, and the other end of the heat exchanger tube is communicated to the liquid collecting by liquid collecting tube sheet
Chamber；
The liquid collecting cavity is communicated to the heat exchanging chamber, the outer peripheral face of the chamber shell of the liquid separation chamber and the madial wall of the housing
Between leave annular space, the heat exchanging chamber passes through the annular space and connects the medium outlet pipe.
Preferably, be connected with inner barrel between the first end plate and the liquid separation tube sheet, the first end plate, it is described in
Cylinder and the liquid separation tube sheet surround the liquid separation chamber jointly, and the external diameter of the inner barrel is less than the internal diameter of the housing.
Preferably, the heat exchanger tube includes more parallel copper pipes, and gap is left between adjacent copper pipe.
Preferably, the periphery of the liquid collecting tube sheet is fixedly connected with the madial wall of the housing, the liquid collecting tube sheet, described
Housing and second end plate surround the liquid collecting cavity jointly.
Preferably, the periphery of the liquid collecting tube sheet is provided with the through hole for connecting the heat exchanging chamber and the liquid collecting cavity.
Preferably, it is provided with gas-liquid separator between the ground heat exchanger and the high-pressure pump.
Preferably, the gas-liquid separator includes separator cavity, and the side of the separator cavity is provided with inlet, institute
The bottom for stating separator cavity is provided with liquid outlet, and the top of the separator cavity is provided with exhaust outlet, in the separator cavity
The corresponding exhaust ports are provided with ball-cock assembly；
Inclined downward in the separator cavity positioned at the inlet is provided with baffle plate, and tapping is offered on the baffle plate
Hole.
Preferably, the baffle plate gradually rises from side to the relative opposite side close to the inlet.
Preferably, the separator cavity is corrosion-resistant separator cavity, and the baffle plate is the baffle plate of anti-corrosion material.
After employing above-mentioned technical proposal, the beneficial effects of the utility model are：
When in use, bore hole heat exchanger is installed in deep-well inner sleeve for individual well hot dry rock heating system of the present utility model
Bottom, the water filling in well, water is set not have a bore hole heat exchanger, the water in well absorbs the heat heating of borehole wall dry-hot-rock geothermal, heating
Heat transferring medium in bore hole heat exchanger, heat transferring medium flow out from the medium outlet pipe of bore hole heat exchanger, extracted to ground, to conduct
The heat source of ground heat exchanger, flow back into by the heat transferring medium after absorption heat by medium inlet pipe in bore hole heat exchanger.Such as
The underground heat extraction of xeothermic rock stratum is constantly come up, heated to user by this iterative cycles, heat transferring medium.Because sleeve pipe inner bottom part seals
Close, the water in deep-well in sleeve pipe, will not make the liquid level of the injection water in sleeve pipe keep constant, be in the water in sleeve pipe and treat
The xeothermic rock stratum of heat is absorbed, ensure that the stable operation of system.This system of the present utility model, can be effectively utilized dry
Hot rock heat energy, so as to make the utilization of hot dry rock heat energy be promoted use.
In the utility model, bore hole heat exchanger includes liquid separation chamber, heat exchanging chamber and the liquid collecting cavity set gradually, and heat exchange is situated between
Matter enters liquid separation chamber by medium inlet pipe, is branched to through liquid separation tube sheet in the heat exchanger tube in heat exchanging chamber, then through liquid collecting tube sheet collection
In flowed into liquid collecting cavity, then by liquid collecting cavity in heat exchanging chamber, it is empty subsequently into the annular between liquid separation cavity outer wall and inner walls
Gap, carried from the outflow of medium outlet pipe to outside well.In this cyclic process, the heat transferring medium of the low temperature absorption heat-exchange intracavitary in heat exchanger tube
Heat transferring medium heat, carry out one-level heating, the cryogenic media after heating enters heat exchanging chamber after liquid collecting cavity is concentrated, changing
Hot intracavitary, heat transferring medium are exchanged heat with hull outside by the water of geothermal heating, absorb the heat of underground heat indirectly, carry out the second level and add
Heat, heats up into high-temperature medium, then carries to well and utilizes the heat energy for the underground heat drawn outside.Such a structure, by two-stage heat exchange structure,
The heat energy of underground heat in well is maximumlly extracted, heat energy extraction efficiency is high.Because housing is cylindrical shape, it is easy to be positioned in well.
In the utility model, gas-liquid separator is provided between ground heat exchanger and high-pressure pump, the liquid containing gas is changed
Thermal medium enters in separator cavity from the inlet of gas-liquid separator cavity side, first flows on baffle plate, by the resistance of baffle plate
Gear acts on, and gas therein rises to upper space in separator cavity, and liquid heat transferring medium falls from the taphole of baffle plate
Lower space to separator cavity.Upper space accumulation of the gas in separator cavity is emitted by exhaust outlet.
When the liquid level in separator cavity reaches certain height, ball-cock assembly blocks exhaust outlet, is no longer vented, to ensure system
The pressure requirements of operation.By such a mode, after making upper space accumulation of the gas in heat transferring medium in separator cavity
Just discharged by exhaust outlet, emitted by the gas in liquid heat transferring medium, while making heat transferring medium gas-liquid separation, energy
Enough ensure the operating pressure of system, to ensure the reliability service of system.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples：
Fig. 1 is the structural representation of individual well hot dry rock heating system of the present utility model；
Fig. 2 is the structural representation of the bore hole heat exchanger in Fig. 1；
Fig. 3 is the structural representation of the gas-liquid separator in Fig. 1；
In figure：1- deep-wells；2- sleeve pipes；3- bore hole heat exchangers；31- housings；32- first end plates；33- inner barrels；34- liquid separations
Tube sheet；35- liquid separation chambers；36- heat exchanging chambers；37- liquid collecting cavities；38- heat exchanger tubes；39- liquid collecting tube sheets；391- through holes；The ends of 310- second
Plate；311- medium inlet pipes；312- medium outlet pipes；313- annular spaces；4- grounds heat exchanger；5- gas-liquid separators；51- separators
Cavity；511- inlets；512- liquid outlets；513- exhaust outlets；52- ball-cock assemblys；53- baffle plates；531- tapholes；6- high-pressure pumps；
7- heating circulation pipelines；71- secondary side circulating pumps；72- user.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.
Reference picture 1, individual well hot dry rock heating system of the present utility model, including the set being arranged in hot dry rock layer depth well 1
Pipe 2, the bottom end closure of sleeve pipe 2, the inner bottom part of sleeve pipe 2 are provided with bore hole heat exchanger 3, and sleeve pipe inner bottom part is inoculated with water, and bore hole heat exchanger 3 does not have
Enter in water.
The top of bore hole heat exchanger 3 is provided with medium inlet pipe 311 and medium outlet pipe 312, and medium outlet pipe 312, which is connected to the ground, changes
Side-entrance of hot device 4, a side outlet of ground heat exchanger 4 are connected to medium inlet pipe 311 after high-pressure pump 6.
The secondary side of ground heat exchanger 4 connects user side heating circulation pipeline 7, is set in user side heating circulation pipeline 7
There are secondary side circulating pump 71, the medium entrance of the secondary side outlet connection user 72 of ground heat exchanger 4, the media outlet of user 72
The secondary side-entrance of upper heat exchanger 4 is connected to the ground after secondary side circulating pump 71.
In order to which the gas in the liquid heat transferring medium circulated in side system of system is separated, can exchange heat on the ground
Gas-liquid separator 5 is provided between the primary side and high-pressure pump 6 of device 4.To ensure the reliable and stable operation of system.
Reference picture 2, bore hole heat exchanger 3 can use structure in detail below：Bore hole heat exchanger 3 includes columnar housing 31,
The both ends of housing 31 set end plate respectively, and the end plate for defining both ends is respectively the end plate 310 of first end plate 32 and second, first end plate
Medium inlet pipe 311 and medium outlet pipe 312 are connected on 32 lateral wall.
In housing 31 from be disposed between the end plate of first end plate 32 to the second 310 liquid separation chamber 35, heat exchanging chamber 36 and
Liquid collecting cavity 37, medium inlet pipe 311 are communicated to liquid separation chamber 35, and heat exchanger tube 38 is provided with heat exchanging chamber 36, and heat exchanger tube 38 includes more
Parallel copper pipe, gap is left between adjacent copper pipe.One end of heat exchanger tube 38 is communicated to liquid separation chamber 35 by liquid separation tube sheet 34,
The other end of heat exchanger tube 38 is communicated to liquid collecting cavity 37 by liquid collecting tube sheet 39.It is connected between first end plate 32 and liquid separation tube sheet 34
Inner barrel 33, inner barrel 33 are used as chamber shell, liquid separation chamber 35, inner barrel 33 are surrounded jointly with first end plate 32 and liquid separation tube sheet 34
External diameter be less than housing 31 internal diameter, leave annular space 313 between the lateral wall of inner barrel 33 and the madial wall of housing 31, change
Hot chamber 36 connects medium outlet pipe 312 by annular space 313.
The periphery of liquid collecting tube sheet 39 is fixedly connected with the madial wall of housing 31, liquid collecting tube sheet 39, the end of housing 31 and second
Plate 310 surrounds liquid collecting cavity 37 jointly.The periphery of liquid collecting tube sheet 39 is provided with the through hole of connection heat exchanging chamber 36 and liquid collecting cavity 37
391, liquid collecting cavity 37 is communicated to heat exchanging chamber 36 by through hole 391.
In deep-well 1, the heat exchange of the heat transferring medium of low temperature in heat exchanger tube 38 in absorption heat-exchange chamber 36 is situated between bore hole heat exchanger 3
The heat of matter, one-level heating is carried out, the cryogenic media after heating enters heat exchanging chamber 36 after the concentration of liquid collecting cavity 37, in heat exchanging chamber
In 36, heat transferring medium absorbs the heat of underground heat, carries out the second level and add indirectly with being exchanged heat outside housing 31 by the water of geothermal heating
Heat, heats up into high-temperature medium, then carries to well and utilizes the heat energy for the underground heat drawn outside.Such a endless form, two-step heating is formed,
The heat energy of underground heat in well is maximumlly extracted, heat energy extraction efficiency is high.Heat transferring medium can use freon etc..
The height of housing 31 can reach more than more than ten meters, and diameter is small, and height is high, is easy to be positioned in well, passes through above-mentioned two
Level heat exchange structure, maximumlly extract the heat energy of underground heat in well., can be because the length of the heat exchanger tube 38 in heat exchanging chamber 36 is longer
Set horizontal support (not shown) to fix heat exchanger tube 38 in housing 31, avoid the rocking in use of heat exchanger tube 38.
The bore hole heat exchanger of such a structure, housing 31 are cylindrical shape, it is convenient to are installed on the deep-well as deep as xeothermic rock stratum
Interior use, extracting the heat energy of hot dry rock becomes simple and easy, utilizes extensively with can promoting hot dry rock heat energy.
Reference picture 3, gas-liquid separator 5 can use following structure：Gas-liquid separator 5 includes separator cavity 51, separator
The side of cavity 51 is provided with inlet 511, and the bottom of separator cavity 51 is provided with liquid outlet 512, the top of separator cavity 51
Provided with exhaust outlet 513, corresponded in separator cavity 51 and ball-cock assembly 52 is provided with exhaust outlet 513.Ball-cock assembly 52 is used to close closing and opening
Open exhaust outlet 513.
Inclined downward in separator cavity 51 positioned at inlet 512 is provided with baffle plate 53, and taphole is offered on baffle plate 53
531。
Baffle plate 53 gradually rises from side to the relative opposite side close to inlet 511.
Separator cavity 51 is corrosion-resistant separator cavity, directly can be made of anti-corrosion material, or in separator chamber
The inner surface coating anti-corrosion material of body, baffle plate 53 is the baffle plate of anti-corrosion material.The gas-liquid separator of such a structure when in use, contains
The liquid heat transferring medium for having gas enters in separator cavity 51 from the inlet 511 of the side of separator cavity 51, first flows to gear
On plate 53, under the barrier effect of baffle plate 53, gas therein rises to upper space, liquid heat exchange in separator cavity 51
Medium drops down onto the lower space in separator cavity 51 under the taphole 531 of baffle plate 53.Gas is in separator cavity 51
Upper space accumulation is emitted by exhaust outlet 513.When the liquid level in separator cavity 51 reaches certain height,
Ball-cock assembly 52 blocks exhaust outlet, is no longer vented, to ensure the pressure requirements of system operation.By such a mode, make heat transferring medium
In gas in separator cavity 51 upper space accumulation after just discharged by exhaust outlet, by liquid heat transferring medium
Gas emits, and while making heat transferring medium gas-liquid separation, can ensure the operating pressure of system, to ensure the reliable of system
Operation.
Citing described above for the utility model preferred forms, wherein the part do not addressed in detail is this area
The common knowledge of those of ordinary skill.The scope of protection of the utility model is defined by the content of claim, any to be based on this reality
The equivalent transformation carried out with new technical inspiration, also within the scope of protection of the utility model.
Claims (10)
1. individual well hot dry rock heating system, it is characterised in that：Including the sleeve pipe being arranged in hot dry rock layer depth well, described sleeve pipe
Bottom end closure, described sleeve pipe inner bottom part are provided with bore hole heat exchanger, and described sleeve pipe inner bottom part is inoculated with water, and the bore hole heat exchanger submerges
In water；
The top of the bore hole heat exchanger is provided with medium inlet pipe and medium outlet pipe, and the medium outlet pipe is connected to the ground heat exchanger
Side-entrance, a side outlet of the ground heat exchanger are connected to the medium inlet pipe after high-pressure pump；
The secondary side connection user side heating circulation pipeline of the ground heat exchanger.
2. individual well hot dry rock heating system according to claim 1, it is characterised in that：The bore hole heat exchanger includes cylinder
The housing of shape, the both ends of the housing set end plate respectively, and the end plate for defining both ends is respectively first end plate and the second end plate, institute
Matter inlet pipe and the medium outlet pipe are given an account of in the first end plate；
In the housing liquid separation chamber, heat exchanging chamber, Yi Jiji are disposed with from the first end plate between second end plate
Sap cavity, the medium inlet pipe are communicated to the liquid separation chamber, heat exchanger tube are provided with the heat exchanging chamber, and one end of the heat exchanger tube leads to
Cross separating tube plate and be communicated to the liquid separation chamber, the other end of the heat exchanger tube is communicated to the liquid collecting cavity by liquid collecting tube sheet；
The liquid collecting cavity is communicated to the heat exchanging chamber, between the outer peripheral face of the chamber shell of the liquid separation chamber and the madial wall of the housing
Annular space is left, the heat exchanging chamber connects the medium outlet pipe by the annular space.
3. individual well hot dry rock heating system according to claim 2, it is characterised in that：The first end plate and the liquid separation
Inner barrel is connected between tube sheet, the first end plate, the inner barrel and the liquid separation tube sheet surround the liquid separation jointly
Chamber, the external diameter of the inner barrel are less than the internal diameter of the housing.
4. individual well hot dry rock heating system according to claim 3, it is characterised in that：The heat exchanger tube includes more parallel
Copper pipe, leave gap between adjacent copper pipe.
5. individual well hot dry rock heating system according to claim 4, it is characterised in that：The periphery of the liquid collecting tube sheet and institute
The madial wall for stating housing is fixedly connected, and the liquid collecting tube sheet, the housing and second end plate surround the liquid collecting jointly
Chamber.
6. individual well hot dry rock heating system according to claim 5, it is characterised in that：The periphery of the liquid collecting tube sheet is set
It is equipped with the through hole for connecting the heat exchanging chamber and the liquid collecting cavity.
7. the individual well hot dry rock heating system according to any one of claim 1 to 6, it is characterised in that：The ground heat exchange
Gas-liquid separator is provided between device and the high-pressure pump.
8. individual well hot dry rock heating system according to claim 7, it is characterised in that：The gas-liquid separator includes separation
Device cavity, the side of the separator cavity are provided with inlet, and the bottom of the separator cavity is provided with liquid outlet, the separation
The top of device cavity is provided with exhaust outlet, and the exhaust ports are corresponded in the separator cavity and are provided with ball-cock assembly；
Inclined downward in the separator cavity positioned at the inlet is provided with baffle plate, and taphole is offered on the baffle plate.
9. individual well hot dry rock heating system according to claim 8, it is characterised in that：The baffle plate is from close to the feed liquor
Side to the relative opposite side of mouth gradually rises.
10. individual well hot dry rock heating system according to claim 9, it is characterised in that：The separator cavity is anti-corrosion
Separator cavity, the baffle plate be anti-corrosion material baffle plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720301290.2U CN206683028U (en) | 2017-03-24 | 2017-03-24 | Individual well hot dry rock heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720301290.2U CN206683028U (en) | 2017-03-24 | 2017-03-24 | Individual well hot dry rock heating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206683028U true CN206683028U (en) | 2017-11-28 |
Family
ID=60390882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720301290.2U Active CN206683028U (en) | 2017-03-24 | 2017-03-24 | Individual well hot dry rock heating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206683028U (en) |
-
2017
- 2017-03-24 CN CN201720301290.2U patent/CN206683028U/en active Active
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